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Show 1 9 0 5 .] OF PHYTOPHAGOUS COLEOPTERA. 4 4 7 a broad transverse band at tlie base and another below the middle, connected at the suture, metallic green. Length 9 millim. Head fulvous, with a few punctures near the eyes, the clypeus with a strongly raised, central carina, eyes large; antennse long and slender, third joint shorter than the fourth; thorax more than twice as broad as long, the sides strongly rounded, broadly flattened; the disc very convex, very minutely punctured when seen under a strong lens, fulvous; scutellum broad, fulvous; elytra convex, scarcely widened at the middle, with a shallow transverse depression below the base, extremely finely punctured, the punctures of different sizes, with two very broad, transverse, metallic green bands, the first at the base not extending to the margins but nearly to the middle, the second band immediately below the latter, of nearly the same width and not extending to the apex ; these bands are therefore separated by a narrow transverse and straight band of the ground-colour which does not quite extend to the suture and rounded at its inner termination; under side and legs fulvous. IIah. Amazons. Of more parallel shape than 0. cenea, and distinguished from that and other similarly marked species by the bright metallic-green bands of the elytra, separated at the middle by a straight narrow fulvous band which does not extend quite to the suture; in 0. bipartita, which has similarly coloured metallic bands, these are divided before and beloiv the middle. O e d io n y ch is c a r d in a l is , sp. n. (Clark, MS.). Piceous, head and thorax flavous, the latter narrowed in front; elytra microscopically punctured, flavous, a broad transverse band at the base and another of more rounded shape below the middle, violaceous blue. Length 10 millim. The principal differences which separate this species from many similarly coloured forms are to be found in the large general size, anteriorly narrowed thorax, and the shape of the elytral bands; the eyes are well separated, and the head is sparingly and finely punctured; the frontal elevations and the carina are proportionately broad ; the antenna? have very slender and elongate joints, the lower three are fulvous, the rest black (in the British Museum specimen, named by Clark, the antennae are entirely fulvous). The thorax is less transverse than in many other species, distinctly narrowed anteriorly, with strongly rounded sides, the anterior angles are blunt above, but have a short projection below the margin in front of the eyes ; the lateral sulci are rather broad and shallow ; the scutellum is flavous ; the punctuation of the elytra can only be seen with a very strong lens ; of the blue elytral bands, the first extends nearly to the middle and has its posterior margin straight or nearly so, in the second band the anterior and posterior margins are rounded, so that the |
